Home / 115,519.80-173,267.96-78,318.93

Finding the Fourth Proportional to 115,519.80, 173,267.96 and 78,318.93

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Solution

The fourth proportional to 115,519.80, 173,267.96 and 78,318.93 is: 117,470.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,519.80 : 173,267.96 = 78,318.93 : x
  2. Step 2: Convert to fraction form
    115,519.80/173,267.96 = 78,318.93/x
  3. Step 3: Cross multiply
    115,519.80x = 173,267.96 × 78,318.93
  4. Step 4: Simplify right side
    115,519.80x = 13,570,160,838.89
  5. Step 5: Solve for x
    x = 13,570,160,838.89/115,519.80
  6. Step 6: Final answer
    x = 117,470.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.